A primary light source is one that actually produces light, such as a light bulb or the sun.
A secondary light source in one that ONLY reflects the light produced by a primary light source. It doesn't produce light itself, such as a mirror or the moon.
Red & violet.
The two sources of white light are: *visible light *The Sun.
Infrared light, microwaves and radio waves have wavelengths longer than visible light. Radio waves have the longest wavelength.
The two types of radiation that are not emitted by radioactive substances are electromagnetic radiation in the form of visible light and sound waves. Radioactive substances primarily emit alpha particles, beta particles, and gamma rays. Visible light is not a product of radioactive decay, and sound waves do not arise from nuclear processes. Thus, both visible light and sound waves are not associated with radioactivity.
Transverse and Compressional electromagetic waves Another opinion: No electromagnetic waves are compressional waves. They're all transverse. I think what the question was looking for is: -- Heat and visible light -- Radio waves and X-rays -- Ultraviolet and gamma rays etc.
Two different types of light waves are visible light waves and ultraviolet light waves. Visible light waves are the only part of the electromagnetic spectrum that our eyes can detect, while ultraviolet light waves have shorter wavelengths and higher frequencies than visible light.
there are three types of light waves i.e infrared light, visible light and ultra violet light. Out of these, only visible light rays (waves) gets reflected by the mirror but the other two light waves passes through the mirror.
Red & violet.
The two sources of white light are: *visible light *The Sun.
Yes, if the light comes from synchronous interfering sources such as a beam which has been split, sent down two paths, and recombined. An example is the famous Michaelson-Morley experiments in a search for the ether. The interference worked fine, but there is no ether.
for wavelength, the longer of the two is visible light, but the longest type of rays are radio waves (some of them have a wavelength as long as a football field)
As you know that there are three types of light waves i.e infrared light, visible light and ultra violet light. Out of these, only visible light rays (waves) gets reflected by the mirror but the other two light waves passes through the mirror.
Radio waves are a type of electromagnetic radiation similar to visible light. If there were 2 light sources with different color light you would not have any problem seeing both colors. It is the same with radio waves on different wavelengths.
Ultraviolet (UV) and infrared waves lie at the end of the visible spectrum. UV waves have shorter wavelengths than violet light, while infrared waves have longer wavelengths than red light.
Infrared light, microwaves and radio waves have wavelengths longer than visible light. Radio waves have the longest wavelength.
The two ligh energy waves that you can't see are ultra-violet (UV), and infra-red (IR). Ultra-violet light waves are measured at 380nm and below, infra-red light waves are 750nm and above. Normal light that you can see resides between these two regions.
Coherent sources are sources of waves that have a constant phase difference between them. An example of coherent sources is two identical lasers emitting light waves with the same frequency and wavelength.